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61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_system_openfilefinder_h__
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#define mozilla_system_openfilefinder_h__
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#include "nsString.h"
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#include <dirent.h>
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namespace mozilla {
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namespace system {
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class OpenFileFinder
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{
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public:
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enum State
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{
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NEXT_PID,
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CHECK_FDS,
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DONE
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};
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class Info
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{
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public:
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nsCString mFileName; // name of the the open file
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nsCString mAppName; // App which has the file open (if it's a b2g app)
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pid_t mPid; // pid of the process which has the file open
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nsCString mComm; // comm associated with pid
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nsCString mExe; // executable name associated with pid
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};
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OpenFileFinder(const nsACString& aPath);
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~OpenFileFinder();
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bool First(Info* aInfo); // Return the first open file
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bool Next(Info* aInfo); // Return the next open file
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void Close();
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private:
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void FillInfo(Info *aInfo, const nsACString& aPath);
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bool ReadSymLink(const nsACString& aSymLink, nsACString& aOutPath);
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bool PathMatches(const nsACString& aPath)
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{
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return Substring(aPath, 0, mPath.Length()).Equals(mPath);
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}
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State mState; // Keeps track of what we're doing.
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nsCString mPath; // Only report files contained within this directory tree
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DIR* mProcDir; // Used for scanning /proc
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DIR* mFdDir; // Used for scanning /proc/PID/fd
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int mPid; // PID currently being processed
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};
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} // system
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} // mozilla
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#endif // mozilla_system_nsvolume_h__
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